RFE: Resources for Economists on the Internet

Energy Information Administration (EIA)

This agency, part of the U.S. Department of Energy, offers a wide
variety of information in this area. Indeed, it is
a veritable treasure trove of useful information on nuclear, oil,
natural gas, coal, and other forms of energy. This includes
long time series. If you are looking for information in any way
related to energy, this is a fine place to look.